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Antenna apparatus

  • US 5,966,097 A
  • Filed: 05/14/1997
  • Issued: 10/12/1999
  • Est. Priority Date: 06/03/1996
  • Status: Expired due to Fees
First Claim
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1. An antenna apparatus comprising:

  • a conductive plate having the shape of a flat plate;

    a first linear conductor disposed over said conductive plate substantially in parallel therewith, having an electrical length of an about 1/4 wavelength of a frequency used, and having one end short-circuited with said conductive plate and another end open; and

    a second linear conductor which is disposed over said conductive plate so as to be substantially parallel to but not coaxial with said first linear conductor and substantially parallel to said conductive plate, has an electrical length of an about 1/4 wavelength of the frequency used, and has one end, located on a side away from the short-circuited end of said first linear conductor, short-circuited with said conductive plate and another end open,wherein feeding is effected between said conductive plate and a point between the short-circuited end and the open end of said second linear conductors.

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